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Given below are two statements. One is labelled Assertion (A) and the other is labelled Reason (R).
Assertion (A): In Lake Victoria, 200 species of cichlid fishes got extinct due to invasion of alien species.
Reason (R): The invasion of Clarias gariepinus led to the extinction of cichlid fishes in Lake Victoria.
In light of the above statements, choose the correct answer from the options given below.

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Both A and R are correct and R is correct explanation of A.

A is not correct, R is correct.

A is correct, but R is not correct.

Both A and R are correct, R is not correct explanation of A.

answer is B.

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Detailed Solution

A is correct, but R is not correct.

Assertion (A) is true; the introduction of Nile perch into Lake Victoria of East Africa led to the extinction of over 200 native cichlid species in Lake Victoria.

Reason (R) is false; Clarias gariepinus, is an African catfish which poses a threat to Indian catfishes.

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